Develop and test real-time

Real Time control Systems


Two of the more intuitive real-time systems that you can build in a general category called continuous media systems are:

1) Machine vision guided robotics (where an embedded or overhead camera is used to position a manipulator rather than position encoders and inverse kinematics - or use both) - I have found that this is great for teaching Rate Monotonic theory with hands on.

2) Digital audio decoding, transport over a network and encoding using a simple off-the-shelf sound card (VoIP or internet radio applications).

In the case of #1, you can see the effects of real-time response and computations used in guiding a robotic arm.

In the case of #2, you can hear any imperfections in real-time processing and transport with your ears.

Both are simple to build in a modest lab environment or in your home. To be accurate, you need to run off of interrupts and have microsecond or less latency on your hardware/software interface, so consider FreeRTOS and use of a simple camera port (ideally not USB since it has quite a bit of timing variation - or run low resolution on USB).



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